1. A 35-year-old woman complains of 1 day of double vision. She has had no headache or recent illness and has no other complaints. General physical examination is normal. Her right eye appears normal and has a visual acuity of 20/20, and her left eye has a visual acuity of 20/40. The left pupil is dilated and minimally reactive. There is left-sided ptosis and disconjugate gaze, with the left eye tending to go down and out. Which of the following conditions must most urgently be excluded?

2. A 40-year-old man complains of pain and a foreign body sensation in his right eye. His visual acuity is normal bilaterally. After staining with fluorescein, Woods lamp examination reveals multiple, vertically oriented, nearly parallel, fine corneal abrasions. What is the most appropriate next step in this patients management?

3. A 50-year-old woman complains of a left-sided headache and left eye pain associated with nausea and vomiting. Her right eye has a visual acuity of 20/40 and appears normal. Her left eye has a visual acuity of 20/200, has a mid-fixed, nonreactive pupil, and is injected. You arrange for her transfer to an ophthalmologist. Which of the following medications would be most appropriate to instill into her eye before transfer?

4. A 60-year-old man complains of left eye pain and photophobia. After staining the affected eye with fluorescein, Woods lamp examination reveals uptake in a fine branching pattern. His ipsilateral conjunctiva is injected, and there is erythema of the periorbital skin. You also note erythema and a small vesicle on the tip of the patients nose. What is the most appropriate therapy for this patient?

5. Following blunt facial trauma, a 35-year-old patient is noted to have marked proptosis, restricted ocular movement, and decreased visual acuity of the left eye. What is the recommended temporizing maneuver?